From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752416AbcEAAmU (ORCPT ); Sat, 30 Apr 2016 20:42:20 -0400 Received: from p3plsmtps2ded04.prod.phx3.secureserver.net ([208.109.80.198]:49042 "EHLO p3plsmtps2ded04.prod.phx3.secureserver.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752081AbcEAAmR (ORCPT ); Sat, 30 Apr 2016 20:42:17 -0400 x-originating-ip: 72.167.245.219 From: "K. Y. Srinivasan" To: gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, devel@linuxdriverproject.org, olaf@aepfle.de, apw@canonical.com, vkuznets@redhat.com, jasowang@redhat.com Cc: "K. Y. Srinivasan" Subject: [PATCH RESEND 4/5] Drivers: hv: balloon: reset host_specified_ha_region Date: Sat, 30 Apr 2016 19:21:36 -0700 Message-Id: <1462069297-11033-4-git-send-email-kys@microsoft.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1462069297-11033-1-git-send-email-kys@microsoft.com> References: <1462069204-10989-1-git-send-email-kys@microsoft.com> <1462069297-11033-1-git-send-email-kys@microsoft.com> X-CMAE-Envelope: MS4wfDWIEAxb/FNp4+ltZsk6bxvHqbh3YDclvZc1qqCaFy/X7vGR/NOMu6NH9o1HWETG8xhvh4au5Gnnoc8R+lNxaCjS7b3ukw3wefbvWDpcDPIkSiKWIbCT o+NKjb4xpw8X0y/gNw3H9EX+QyvMq7xd+DIm7MEzQF1xssyLUOb5HDrkv3JSZT5G5l4sa7aTrDVgJj5orzcSKepl0ThvtTzlBTyKc4lLboXd4eyjnpHD8qiq M0CfV0bUrwCptSVGG2dfT33EPnXIjjDoQUhbVKntebUBf5rfoE74DuwTZyVdEaLC+G18TigSSeuvGufFJYjsRKyDXi6qVNSUCtHzW3E34ryQ+MkPzZ0spVr+ 1XfgFODMQzbaKvRuHRI0UuLCGCyFvA5R+xUHcacR5kZfAHJE5Cjy28x3cVRxR/UFa3WNEjWn Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Vitaly Kuznetsov We set host_specified_ha_region = true on certain request but this is a global state which stays 'true' forever. We need to reset it when we receive a request where ha_region is not specified. I did not see any real issues, the bug was found by code inspection. Signed-off-by: Vitaly Kuznetsov Signed-off-by: K. Y. Srinivasan --- drivers/hv/hv_balloon.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) diff --git a/drivers/hv/hv_balloon.c b/drivers/hv/hv_balloon.c index 43af913..df35fb7 100644 --- a/drivers/hv/hv_balloon.c +++ b/drivers/hv/hv_balloon.c @@ -1400,6 +1400,7 @@ static void balloon_onchannelcallback(void *context) * This is a normal hot-add request specifying * hot-add memory. */ + dm->host_specified_ha_region = false; ha_pg_range = &ha_msg->range; dm->ha_wrk.ha_page_range = *ha_pg_range; dm->ha_wrk.ha_region_range.page_range = 0; -- 1.7.4.1